Manchester United United is on the 13th position in the English Premier League Table so I also doubt if they will enter the relegation zone. They are not bad as to enter the zone. And they will join the Europa League and clubs like Southampton, Leicester City and Ipswich Town are already in the relegation zone. On the 2nd of April, Premier League will resume again and you can see the fixtures here.
I quite agree with agree with you regarding Manchester United position and how they will end the season. Currently the relegation zone is occupied already and I don't see any sign from those teams to come out because of their poor performance, this is funny, those three teams got promoted to Premier league the season from championship and with what I noticed the came unprepared for the challenges ahead, this is so bad for them. At least one of them should have do better.
Manchester United will not relegate despite their poor performance because they still have the strength to hold them to the end of the season that why they concentrate more on Europa League since they have chances of winning. The next match against Nottingham Forest as cut many attention due to the current performance of Nottingham Forest, they surprise us the season and their intention is now cleared which is champions league slot. And to my own view they really deserve it because their threaten all the top teams this season which shock the entire world.